package com.byedu.utils.http;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

import com.alibaba.fastjson.JSON;
import com.byedu.entity.PayBean;
import com.byedu.entity.WechatNotifyBean;
import com.byedu.utils.GetWxOrderno;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;

import com.alibaba.fastjson.JSONObject;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;


/**
 * Http请求工具类
 *
 * @author snowfigure
 * @version v1.0.1
 * @since 2014-8-24 13:30:56
 */
public class HttpRequestUtil {
    static boolean proxySet = false;
    static String proxyHost = "127.0.0.1";
    static int proxyPort = 8087;

    private static final String APPLICATION_JSON = "application/json";

    private static final String CONTENT_TYPE_TEXT_JSON = "text/json";

    /**
     * 编码
     *
     * @param source
     * @return
     */
    public static String urlEncode(String source, String encode) {
        String result = source;
        try {
            result = java.net.URLEncoder.encode(source, encode);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            return "0";
        }
        return result;
    }

    public static String urlEncodeGBK(String source) {
        String result = source;
        try {
            result = java.net.URLEncoder.encode(source, "GBK");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            return "0";
        }
        return result;
    }

    /**
     * 发起http请求获取返回结果
     *
     * @param req_url 请求地址
     * @return
     */
    public static String httpRequest(String req_url) {
        StringBuffer buffer = new StringBuffer();
        try {
            URL url = new URL(req_url);
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();

            httpUrlConn.setDoOutput(false);
            httpUrlConn.setDoInput(true);
            httpUrlConn.setUseCaches(false);

            httpUrlConn.setRequestMethod("GET");
            httpUrlConn.connect();

            // 将返回的输入流转换成字符串
            InputStream inputStream = httpUrlConn.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "UTF-8");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

            String str = null;
            while ((str = bufferedReader.readLine()) != null) {
                buffer.append(str);
            }
            bufferedReader.close();
            inputStreamReader.close();
            // 释放资源
            inputStream.close();
            inputStream = null;
            httpUrlConn.disconnect();

        } catch (Exception e) {
            System.out.println(e.getStackTrace());
        }
        return buffer.toString();
    }

    /**
     * 发送http请求取得返回的输入流
     *
     * @param requestUrl 请求地址
     * @return InputStream
     */
    public static InputStream httpRequestIO(String requestUrl) {
        InputStream inputStream = null;
        try {
            URL url = new URL(requestUrl);
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();
            httpUrlConn.setDoInput(true);
            httpUrlConn.setRequestMethod("GET");
            httpUrlConn.connect();
            // 获得返回的输入流
            inputStream = httpUrlConn.getInputStream();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return inputStream;
    }


    /**
     * 向指定URL发送GET方法的请求
     *
     * @param url   发送请求的URL
     * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return URL 所代表远程资源的响应结果
     */
    public static String sendGet(String url, String param, String headerStr) {
        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;
            URL realUrl = new URL(urlNameString);
            // 打开和URL之间的连接
            URLConnection connection = realUrl.openConnection();
            // 设置通用的请求属性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent",
             "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            connection.setRequestProperty("authorization", headerStr);
            // 建立实际的连接
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.out.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(
             connection.getInputStream(), "utf-8"));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送GET请求出现异常！" + e);
            e.printStackTrace();
        }
        // 使用finally块来关闭输入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }


//    public static String sendGet(String url, String headerStr) {
//        String result = "";
//        BufferedReader in = null;
//        try {
//            String urlNameString = url;
//            URL realUrl = new URL(urlNameString);
//            // 打开和URL之间的连接
//            URLConnection connection = realUrl.openConnection();
//            // 设置通用的请求属性
//            connection.setRequestProperty("accept", "*/*");
//            connection.setRequestProperty("connection", "Keep-Alive");
//            connection.setRequestProperty("user-agent",
//             "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
//            connection.setRequestProperty("authorization", headerStr);
//            // 建立实际的连接
//            connection.connect();
//            // 获取所有响应头字段
//            Map<String, List<String>> map = connection.getHeaderFields();
//            // 遍历所有的响应头字段
//            for (String key : map.keySet()) {
//                System.out.println(key + "--->" + map.get(key));
//            }
//            // 定义 BufferedReader输入流来读取URL的响应
//            in = new BufferedReader(new InputStreamReader(
//             connection.getInputStream(), "utf-8"));
//            String line;
//            while ((line = in.readLine()) != null) {
//                result += line;
//            }
//            System.out.println(result);
//        } catch (Exception e) {
//            System.out.println("发送GET请求出现异常！" + e);
//            e.printStackTrace();
//        }
//        // 使用finally块来关闭输入流
//        finally {
//            try {
//                if (in != null) {
//                    in.close();
//                }
//            } catch (Exception e2) {
//                e2.printStackTrace();
//            }
//        }
//        return result;
//    }

    public static String sendGet(String url, String headerStr) throws Exception {
        CloseableHttpClient httpclient = null;
        try {
            httpclient = HttpClients.createDefault();
            HttpGet httpGet = new HttpGet(url);
            CloseableHttpResponse response = httpclient.execute(httpGet);
            return EntityUtils.toString(response.getEntity());
        } finally {
            if (httpclient != null) {
                httpclient.close();
            }

        }

    }

    /**
     * 向指定 URL 发送POST方法的请求
     *
     * @param url   发送请求的 URL
     * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     *              是否使用代理模式
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, JSONObject param) {

        OutputStreamWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
//            HttpPost request = new HttpPost(url);// 先封装一个 JSON 对象
            HttpPost request = new HttpPost(url);// 先封装一个 JSON 对象

            request.addHeader("Content-type", "application/json; charset=utf-8");
            request.setHeader("Accept", "application/json");
            StringEntity se = new StringEntity(param.toString(), "utf-8");

            request.setEntity(se);// 发送请求
            HttpResponse httpResponse = new DefaultHttpClient().execute(request);// 得到应答的字符串，
            // 设置通用的请求属性

            HttpEntity entity = httpResponse.getEntity();
            if (entity != null) {
                InputStream instreams = entity.getContent();
                result = UclUtil.convertStreamToString(instreams);
            }

            System.out.print("response:" + (result));

        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return result;
    }

    public static void main(String[] args) throws Exception {
        //demo:代理访问

        String userString = HttpRequestUtil.sendGet("http://localhost:8080/usercourse/d7b1fbbb2b5a4eaea0b2c62be47867dd/1", null);// 拿去返回值
        JSONObject jsonUser = JSONObject.parseObject(userString);
        System.out.print(jsonUser.toString());
    }


}